Faster and better sealing capabilities to keep you rolling
Twice the sealing crystals compared to the standard sealant
Seals larger punctures to get you home or to the finish line
“XL” crystals and standard crystals combine to seal larger punctures
Ride the widest range of conditions and temperatures
Premium low-viscosity latex stays liquid to seal faster
Safe for the environment
Comprised of natural materials
Must be poured directly into tire
Not compatible with injector or other valve install methods
For best performance inspect sealant every 2 weeks
The Next Level in Sealing Power from the People who Invented Tubeless Conversions.
If you've walked the mechanics' pits at any National or International level event, chances are you've seen them: trademark Stan's black quart bottles with no labels. Look closer and you might have seen strange symbols scrawled all over the bottles in a silver marker, letters and numbers, formula notes by the man himself, Stan Koziatek.
For nearly fifteen years Stan has been quietly formulating a special racing version of our legendary sealant for many of cycling's most successful teams. Working with athletes who push themselves and their tubeless systems to the absolute limit, we've developed a proprietary sealant formula with close to twice the amount of our standard sealing crystals plus our special "XL" crystals capable of sealing even larger punctures. Stan's Race Sealant's combination of large and smaller sealing crystals interlock to form a lattice work that not only seals but strengthens and reinforces the area of the puncture, allowing for an entirely new level of sealing performance.
The quantity and size of crystals in this special formula means that Stan's Race Sealant can only be installed directly into the tire.As a result of its immense sealing capabilities, Race Sealant is not compatible with injector or other valve installation methods. Race sealant should be inspected every 2-3 weeks for best performance. Be sure to rinse race sealant out of used tires intended to be stored/reinstalled.
We are now making our Race Sealant available to riders everywhere. Stan's Race Sealant is only available by the quart.
Race Sealant is not compatible with sealant injectors or other methods of installation through the valve. Race Sealant must be poured directly into the tire.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.